"You can *retrieve* objects from the *document repository* using both its ``find`` and ``findAll`` methods. "

I don't think `->find('/foobar')` counts as a query (as I think of it), its a retrieval of a specific document. Also typo: unkown

I don't know if we should explain here that arbitrary documents should be retrieved with `$dm->find(null, '/path/to/doc')`